1) David has 3/4 cup of salsa for making burritos. Each burrito requires 1/8 cup of salsa. How many burritos can David make ?
2) Five people share 1/2 pound of cheese equally. How much cheese does each person receive?
3) One pizza can be made in 1/2 hour. How many pizzas can be made in 5/2 hours ?
4) David eats 1/4 of a pizza and divides the remaining in to two equal parts for his two kids. What is the part of the pizza will each kid receive ?
5) I can cover 3/4 mile in 1/2 hour by walk. Find the distance covered by in two hours.
Answer (1) :
To find the number of burritos that can be made, you need to determine how many 1/8 -cup servings are in 3/4 cup.
In the diagram given below, 3/4 of a whole is divided into quarters and into eighths.
In the whole cup, there are eight 1/8 cups.
But, David has 3/4 cup of salsa.
So, we have to count the number of 1/8 cups in 3/4 cup in the above diagram.
And there are six 1/8 cups in 3/4 cup of salsa.
Hence, David can make 6 burritos from 3/4 cup of salsa.
Answer (2) :
To find how much cheese each person receives, you can divide 1/2 pound into 5 equal parts. Use the diagram to determine what fraction of a whole pound each person receives.
In the diagram given below, 1/2 of a whole is divided into halves and into tenths.
In one pound of cheese, there are ten 1/10s.
But, there is 1/2 pound of cheese.
So, we have to count the number of 1/10s in 1/2 pound of cheese.
And there are five 1/10s in 1/2 pound of cheese.
Hence, Each person will receive 1/10 pound of cheese.
Answer (3) :
Time taken to make one pizza = 1/2 hour
No. of pizzas made in 5/2 hours = 5/2 ÷ 1/2
No. of pizzas made in 5/2 hours = 5/2 ⋅ 2/1
No. of pizzas made in 5/2 hours = (5 ⋅ 2) / (2 ⋅ 1)
No. of pizzas made in 5/2 hours = (5 ⋅ 1) / (1 ⋅ 1)
No. of pizzas made in 5/2 hours = 5 / 1
No. of pizzas made in 5/2 hours = 5
Answer (4) :
Part of the pizza eaten by David = 1/4
Remaining pizza = 3/4
Given : Remaining pizza is divided in to equal parts for his two kids.
So, part of the pizza received by each kid is
= (3/4) ÷ 2
= 3/(4 ⋅ 2)
Hence, each kid will receive 3/8 part of the pizza.
Answer (5) :
Given : 3/4 miles of distance covered in 1/2 hour.
We all know the formula for speed. That is
Speed = Distance / Time
Here, Distance = 3/4 miles and time = 1/2 hour
Speed = (3/4) ÷ (1/2)
Speed = (3/4) ⋅ (2/1)
Speed = (3 ⋅ 2) / (4 ⋅ 1)
Speed = (3 ⋅ 1) / (2 ⋅ 1)
Speed = 3/2
Therefore, speed is 3/2 miles per hour.
That is, 3/2 miles of distance covered in one hour.
Then the distance covered in two hours is
= (3/2) ⋅ 2
= 3 miles
Hence, I will cover 3 miles of distance in 2 hours.
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